vpp/build/external/patches/dpdk_20.02/0015-net-iavf-support-generic-flow.patch

From 0692e4be875c64c5d26f2e6df80bbb1a24df36a6 Mon Sep 17 00:00:00 2001
From: Chenmin Sun <chenmin.sun@intel.com>
Date: Fri, 17 Apr 2020 05:02:22 +0800
Subject: [DPDK 15/17] net/iavf: support generic flow

This patch added iavf_flow_create, iavf_flow_destroy,
iavf_flow_flush and iavf_flow_validate support,
these are used to handle all the generic filters.

This patch supported basic L2, L3, L4 and GTPU patterns.

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
Signed-off-by: Chenmin Sun <chenmin.sun@intel.com>
---
 doc/guides/nics/features/iavf.ini    |    1 +
 drivers/net/iavf/Makefile            |    1 +
 drivers/net/iavf/iavf.h              |   10 +
 drivers/net/iavf/iavf_ethdev.c       |   45 ++
 drivers/net/iavf/iavf_generic_flow.c | 1008 ++++++++++++++++++++++++++
 drivers/net/iavf/iavf_generic_flow.h |  313 ++++++++
 drivers/net/iavf/meson.build         |    1 +
 7 files changed, 1379 insertions(+)
 create mode 100644 drivers/net/iavf/iavf_generic_flow.c
 create mode 100644 drivers/net/iavf/iavf_generic_flow.h

diff --git a/doc/guides/nics/features/iavf.ini b/doc/guides/nics/features/iavf.ini
index 80143059e..3bf368785 100644
--- a/doc/guides/nics/features/iavf.ini
+++ b/doc/guides/nics/features/iavf.ini
@@ -19,6 +19,7 @@ Multicast MAC filter = Y
 RSS hash             = Y
 RSS key update       = Y
 RSS reta update      = Y
+Flow API             = Y
 VLAN filter          = Y
 CRC offload          = Y
 VLAN offload         = Y
diff --git a/drivers/net/iavf/Makefile b/drivers/net/iavf/Makefile
index 514073d76..1bf0f26b5 100644
--- a/drivers/net/iavf/Makefile
+++ b/drivers/net/iavf/Makefile
@@ -23,6 +23,7 @@ EXPORT_MAP := rte_pmd_iavf_version.map
 SRCS-$(CONFIG_RTE_LIBRTE_IAVF_PMD) += iavf_ethdev.c
 SRCS-$(CONFIG_RTE_LIBRTE_IAVF_PMD) += iavf_vchnl.c
 SRCS-$(CONFIG_RTE_LIBRTE_IAVF_PMD) += iavf_rxtx.c
+SRCS-$(CONFIG_RTE_LIBRTE_IAVF_PMD) += iavf_generic_flow.c
 ifeq ($(CONFIG_RTE_ARCH_X86), y)
 SRCS-$(CONFIG_RTE_LIBRTE_IAVF_PMD) += iavf_rxtx_vec_sse.c
 endif
diff --git a/drivers/net/iavf/iavf.h b/drivers/net/iavf/iavf.h
index b63efd4e8..78bdaff20 100644
--- a/drivers/net/iavf/iavf.h
+++ b/drivers/net/iavf/iavf.h
@@ -86,6 +86,12 @@ struct iavf_vsi {
 	struct virtchnl_eth_stats eth_stats_offset;
 };
 
+struct rte_flow;
+TAILQ_HEAD(iavf_flow_list, rte_flow);
+
+struct iavf_flow_parser_node;
+TAILQ_HEAD(iavf_parser_list, iavf_flow_parser_node);
+
 /* TODO: is that correct to assume the max number to be 16 ?*/
 #define IAVF_MAX_MSIX_VECTORS   16
 
@@ -121,6 +127,10 @@ struct iavf_info {
 	uint16_t msix_base; /* msix vector base from */
 	/* queue bitmask for each vector */
 	uint16_t rxq_map[IAVF_MAX_MSIX_VECTORS];
+	struct iavf_flow_list flow_list;
+	rte_spinlock_t flow_ops_lock;
+	struct iavf_parser_list rss_parser_list;
+	struct iavf_parser_list dist_parser_list;
 };
 
 #define IAVF_MAX_PKT_TYPE 1024
diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
index d3a121eac..95ab6e246 100644
--- a/drivers/net/iavf/iavf_ethdev.c
+++ b/drivers/net/iavf/iavf_ethdev.c
@@ -27,6 +27,7 @@
 
 #include "iavf.h"
 #include "iavf_rxtx.h"
+#include "iavf_generic_flow.h"
 
 static int iavf_dev_configure(struct rte_eth_dev *dev);
 static int iavf_dev_start(struct rte_eth_dev *dev);
@@ -67,6 +68,11 @@ static int iavf_dev_rx_queue_intr_enable(struct rte_eth_dev *dev,
 					uint16_t queue_id);
 static int iavf_dev_rx_queue_intr_disable(struct rte_eth_dev *dev,
 					 uint16_t queue_id);
+static int iavf_dev_filter_ctrl(struct rte_eth_dev *dev,
+		     enum rte_filter_type filter_type,
+		     enum rte_filter_op filter_op,
+		     void *arg);
+
 
 int iavf_logtype_init;
 int iavf_logtype_driver;
@@ -125,6 +131,7 @@ static const struct eth_dev_ops iavf_eth_dev_ops = {
 	.mtu_set                    = iavf_dev_mtu_set,
 	.rx_queue_intr_enable       = iavf_dev_rx_queue_intr_enable,
 	.rx_queue_intr_disable      = iavf_dev_rx_queue_intr_disable,
+	.filter_ctrl                = iavf_dev_filter_ctrl,
 };
 
 static int
@@ -1298,6 +1305,33 @@ iavf_dev_interrupt_handler(void *param)
 	iavf_enable_irq0(hw);
 }
 
+static int
+iavf_dev_filter_ctrl(struct rte_eth_dev *dev,
+		     enum rte_filter_type filter_type,
+		     enum rte_filter_op filter_op,
+		     void *arg)
+{
+	int ret = 0;
+
+	if (!dev)
+		return -EINVAL;
+
+	switch (filter_type) {
+	case RTE_ETH_FILTER_GENERIC:
+		if (filter_op != RTE_ETH_FILTER_GET)
+			return -EINVAL;
+		*(const void **)arg = &iavf_flow_ops;
+		break;
+	default:
+		PMD_DRV_LOG(WARNING, "Filter type (%d) not supported",
+			    filter_type);
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
 static int
 iavf_dev_init(struct rte_eth_dev *eth_dev)
 {
@@ -1305,6 +1339,7 @@ iavf_dev_init(struct rte_eth_dev *eth_dev)
 		IAVF_DEV_PRIVATE_TO_ADAPTER(eth_dev->data->dev_private);
 	struct iavf_hw *hw = IAVF_DEV_PRIVATE_TO_HW(adapter);
 	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+	int ret = 0;
 
 	PMD_INIT_FUNC_TRACE();
 
@@ -1374,6 +1409,12 @@ iavf_dev_init(struct rte_eth_dev *eth_dev)
 	/* configure and enable device interrupt */
 	iavf_enable_irq0(hw);
 
+	ret = iavf_flow_init(adapter);
+	if (ret) {
+		PMD_INIT_LOG(ERR, "Failed to initialize flow");
+		return ret;
+	}
+
 	return 0;
 }
 
@@ -1383,6 +1424,8 @@ iavf_dev_close(struct rte_eth_dev *dev)
 	struct iavf_hw *hw = IAVF_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 	struct rte_intr_handle *intr_handle = &pci_dev->intr_handle;
+	struct iavf_adapter *adapter =
+		IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
 
 	iavf_dev_stop(dev);
 	iavf_shutdown_adminq(hw);
@@ -1393,6 +1436,8 @@ iavf_dev_close(struct rte_eth_dev *dev)
 	rte_intr_callback_unregister(intr_handle,
 				     iavf_dev_interrupt_handler, dev);
 	iavf_disable_irq0(hw);
+
+	iavf_flow_uninit(adapter);
 }
 
 static int
diff --git a/drivers/net/iavf/iavf_generic_flow.c b/drivers/net/iavf/iavf_generic_flow.c
new file mode 100644
index 000000000..98f1626d6
--- /dev/null
+++ b/drivers/net/iavf/iavf_generic_flow.c
@@ -0,0 +1,1008 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2019 Intel Corporation
+ */
+
+#include <sys/queue.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+#include <rte_ether.h>
+#include <rte_ethdev_driver.h>
+#include <rte_malloc.h>
+#include <rte_tailq.h>
+
+#include "iavf.h"
+#include "iavf_generic_flow.h"
+
+static struct iavf_engine_list engine_list =
+		TAILQ_HEAD_INITIALIZER(engine_list);
+
+static int iavf_flow_validate(struct rte_eth_dev *dev,
+		const struct rte_flow_attr *attr,
+		const struct rte_flow_item pattern[],
+		const struct rte_flow_action actions[],
+		struct rte_flow_error *error);
+static struct rte_flow *iavf_flow_create(struct rte_eth_dev *dev,
+		const struct rte_flow_attr *attr,
+		const struct rte_flow_item pattern[],
+		const struct rte_flow_action actions[],
+		struct rte_flow_error *error);
+static int iavf_flow_destroy(struct rte_eth_dev *dev,
+		struct rte_flow *flow,
+		struct rte_flow_error *error);
+static int iavf_flow_flush(struct rte_eth_dev *dev,
+		struct rte_flow_error *error);
+static int iavf_flow_query(struct rte_eth_dev *dev,
+		struct rte_flow *flow,
+		const struct rte_flow_action *actions,
+		void *data,
+		struct rte_flow_error *error);
+
+const struct rte_flow_ops iavf_flow_ops = {
+	.validate = iavf_flow_validate,
+	.create = iavf_flow_create,
+	.destroy = iavf_flow_destroy,
+	.flush = iavf_flow_flush,
+	.query = iavf_flow_query,
+};
+
+/* empty */
+enum rte_flow_item_type iavf_pattern_empty[] = {
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+/* L2 */
+enum rte_flow_item_type iavf_pattern_ethertype[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_ethertype_vlan[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_ethertype_qinq[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+/* ARP */
+enum rte_flow_item_type iavf_pattern_eth_arp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_ARP_ETH_IPV4,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+/* non-tunnel IPv4 */
+enum rte_flow_item_type iavf_pattern_eth_ipv4[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv4[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_udp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv4_udp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4_udp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_tcp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_TCP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv4_tcp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_TCP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4_tcp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_TCP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_sctp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_SCTP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv4_sctp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_SCTP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4_sctp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_SCTP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_icmp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_ICMP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv4_icmp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_ICMP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4_icmp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_ICMP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+/* non-tunnel IPv6 */
+enum rte_flow_item_type iavf_pattern_eth_ipv6[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv6_udp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_udp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_udp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv6_tcp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_TCP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_tcp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_TCP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_tcp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_TCP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv6_sctp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_SCTP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_sctp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_SCTP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_sctp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_SCTP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv6_icmp6[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_ICMP6,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_icmp6[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_ICMP6,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_icmp6[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_VLAN,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_ICMP6,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+/* GTPU */
+enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_GTPU,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_eh[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_GTPU,
+	RTE_FLOW_ITEM_TYPE_GTP_PSC,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_ipv4[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_GTPU,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_eh_ipv4[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_GTPU,
+	RTE_FLOW_ITEM_TYPE_GTP_PSC,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_eh_ipv4_udp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_GTPU,
+	RTE_FLOW_ITEM_TYPE_GTP_PSC,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_eh_ipv4_tcp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_GTPU,
+	RTE_FLOW_ITEM_TYPE_GTP_PSC,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_TCP,
+	RTE_FLOW_ITEM_TYPE_END,
+
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_eh_ipv4_icmp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_GTPU,
+	RTE_FLOW_ITEM_TYPE_GTP_PSC,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_ICMP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+/* ESP */
+enum rte_flow_item_type iavf_pattern_eth_ipv4_esp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_ESP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv4_udp_esp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_ESP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv6_esp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_ESP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv6_udp_esp[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_UDP,
+	RTE_FLOW_ITEM_TYPE_ESP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+/* AH */
+enum rte_flow_item_type iavf_pattern_eth_ipv4_ah[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_AH,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv6_ah[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_AH,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+/* L2TPV3 */
+enum rte_flow_item_type iavf_pattern_eth_ipv4_l2tpv3[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV4,
+	RTE_FLOW_ITEM_TYPE_L2TPV3OIP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+enum rte_flow_item_type iavf_pattern_eth_ipv6_l2tpv3[] = {
+	RTE_FLOW_ITEM_TYPE_ETH,
+	RTE_FLOW_ITEM_TYPE_IPV6,
+	RTE_FLOW_ITEM_TYPE_L2TPV3OIP,
+	RTE_FLOW_ITEM_TYPE_END,
+};
+
+typedef struct iavf_flow_engine * (*parse_engine_t)(struct iavf_adapter *ad,
+		struct rte_flow *flow,
+		struct iavf_parser_list *parser_list,
+		const struct rte_flow_item pattern[],
+		const struct rte_flow_action actions[],
+		struct rte_flow_error *error);
+
+void
+iavf_register_flow_engine(struct iavf_flow_engine *engine)
+{
+	TAILQ_INSERT_TAIL(&engine_list, engine, node);
+}
+
+int
+iavf_flow_init(struct iavf_adapter *ad)
+{
+	int ret;
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
+	void *temp;
+	struct iavf_flow_engine *engine;
+
+	TAILQ_INIT(&vf->flow_list);
+	TAILQ_INIT(&vf->rss_parser_list);
+	TAILQ_INIT(&vf->dist_parser_list);
+	rte_spinlock_init(&vf->flow_ops_lock);
+
+	TAILQ_FOREACH_SAFE(engine, &engine_list, node, temp) {
+		if (engine->init == NULL) {
+			PMD_INIT_LOG(ERR, "Invalid engine type (%d)",
+				     engine->type);
+			return -ENOTSUP;
+		}
+
+		ret = engine->init(ad);
+		if (ret && ret != -ENOTSUP) {
+			PMD_INIT_LOG(ERR, "Failed to initialize engine %d",
+				     engine->type);
+			return ret;
+		}
+	}
+	return 0;
+}
+
+void
+iavf_flow_uninit(struct iavf_adapter *ad)
+{
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
+	struct iavf_flow_engine *engine;
+	struct rte_flow *p_flow;
+	struct iavf_flow_parser_node *p_parser;
+	void *temp;
+
+	TAILQ_FOREACH_SAFE(engine, &engine_list, node, temp) {
+		if (engine->uninit)
+			engine->uninit(ad);
+	}
+
+	/* Remove all flows */
+	while ((p_flow = TAILQ_FIRST(&vf->flow_list))) {
+		TAILQ_REMOVE(&vf->flow_list, p_flow, node);
+		if (p_flow->engine->free)
+			p_flow->engine->free(p_flow);
+		rte_free(p_flow);
+	}
+
+	/* Cleanup parser list */
+	while ((p_parser = TAILQ_FIRST(&vf->rss_parser_list))) {
+		TAILQ_REMOVE(&vf->rss_parser_list, p_parser, node);
+		rte_free(p_parser);
+	}
+
+	while ((p_parser = TAILQ_FIRST(&vf->dist_parser_list))) {
+		TAILQ_REMOVE(&vf->dist_parser_list, p_parser, node);
+		rte_free(p_parser);
+	}
+}
+
+int
+iavf_register_parser(struct iavf_flow_parser *parser,
+		     struct iavf_adapter *ad)
+{
+	struct iavf_parser_list *list = NULL;
+	struct iavf_flow_parser_node *parser_node;
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
+
+	parser_node = rte_zmalloc("iavf_parser", sizeof(*parser_node), 0);
+	if (parser_node == NULL) {
+		PMD_DRV_LOG(ERR, "Failed to allocate memory.");
+		return -ENOMEM;
+	}
+	parser_node->parser = parser;
+
+	if (parser->engine->type == IAVF_FLOW_ENGINE_HASH) {
+		list = &vf->rss_parser_list;
+		TAILQ_INSERT_TAIL(list, parser_node, node);
+	} else if (parser->engine->type == IAVF_FLOW_ENGINE_FDIR) {
+		list = &vf->dist_parser_list;
+		TAILQ_INSERT_HEAD(list, parser_node, node);
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+void
+iavf_unregister_parser(struct iavf_flow_parser *parser,
+		       struct iavf_adapter *ad)
+{
+	struct iavf_parser_list *list = NULL;
+	struct iavf_flow_parser_node *p_parser;
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
+	void *temp;
+
+	if (parser->engine->type == IAVF_FLOW_ENGINE_HASH)
+		list = &vf->rss_parser_list;
+	else if (parser->engine->type == IAVF_FLOW_ENGINE_FDIR)
+		list = &vf->dist_parser_list;
+
+	if (list == NULL)
+		return;
+
+	TAILQ_FOREACH_SAFE(p_parser, list, node, temp) {
+		if (p_parser->parser->engine->type == parser->engine->type) {
+			TAILQ_REMOVE(list, p_parser, node);
+			rte_free(p_parser);
+		}
+	}
+}
+
+static int
+iavf_flow_valid_attr(const struct rte_flow_attr *attr,
+		     struct rte_flow_error *error)
+{
+	/* Must be input direction */
+	if (!attr->ingress) {
+		rte_flow_error_set(error, EINVAL,
+				RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
+				attr, "Only support ingress.");
+		return -rte_errno;
+	}
+
+	/* Not supported */
+	if (attr->egress) {
+		rte_flow_error_set(error, EINVAL,
+				RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
+				attr, "Not support egress.");
+		return -rte_errno;
+	}
+
+	/* Not supported */
+	if (attr->priority) {
+		rte_flow_error_set(error, EINVAL,
+				RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
+				attr, "Not support priority.");
+		return -rte_errno;
+	}
+
+	/* Not supported */
+	if (attr->group) {
+		rte_flow_error_set(error, EINVAL,
+				RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
+				attr, "Not support group.");
+		return -rte_errno;
+	}
+
+	return 0;
+}
+
+/* Find the first VOID or non-VOID item pointer */
+static const struct rte_flow_item *
+iavf_find_first_item(const struct rte_flow_item *item, bool is_void)
+{
+	bool is_find;
+
+	while (item->type != RTE_FLOW_ITEM_TYPE_END) {
+		if (is_void)
+			is_find = item->type == RTE_FLOW_ITEM_TYPE_VOID;
+		else
+			is_find = item->type != RTE_FLOW_ITEM_TYPE_VOID;
+		if (is_find)
+			break;
+		item++;
+	}
+	return item;
+}
+
+/* Skip all VOID items of the pattern */
+static void
+iavf_pattern_skip_void_item(struct rte_flow_item *items,
+			const struct rte_flow_item *pattern)
+{
+	uint32_t cpy_count = 0;
+	const struct rte_flow_item *pb = pattern, *pe = pattern;
+
+	for (;;) {
+		/* Find a non-void item first */
+		pb = iavf_find_first_item(pb, false);
+		if (pb->type == RTE_FLOW_ITEM_TYPE_END) {
+			pe = pb;
+			break;
+		}
+
+		/* Find a void item */
+		pe = iavf_find_first_item(pb + 1, true);
+
+		cpy_count = pe - pb;
+		rte_memcpy(items, pb, sizeof(struct rte_flow_item) * cpy_count);
+
+		items += cpy_count;
+
+		if (pe->type == RTE_FLOW_ITEM_TYPE_END)
+			break;
+
+		pb = pe + 1;
+	}
+	/* Copy the END item. */
+	rte_memcpy(items, pe, sizeof(struct rte_flow_item));
+}
+
+/* Check if the pattern matches a supported item type array */
+static bool
+iavf_match_pattern(enum rte_flow_item_type *item_array,
+		   const struct rte_flow_item *pattern)
+{
+	const struct rte_flow_item *item = pattern;
+
+	while ((*item_array == item->type) &&
+	       (*item_array != RTE_FLOW_ITEM_TYPE_END)) {
+		item_array++;
+		item++;
+	}
+
+	return (*item_array == RTE_FLOW_ITEM_TYPE_END &&
+		item->type == RTE_FLOW_ITEM_TYPE_END);
+}
+
+struct iavf_pattern_match_item *
+iavf_search_pattern_match_item(const struct rte_flow_item pattern[],
+		struct iavf_pattern_match_item *array,
+		uint32_t array_len,
+		struct rte_flow_error *error)
+{
+	uint16_t i = 0;
+	struct iavf_pattern_match_item *pattern_match_item;
+	/* need free by each filter */
+	struct rte_flow_item *items; /* used for pattern without VOID items */
+	uint32_t item_num = 0; /* non-void item number */
+
+	/* Get the non-void item number of pattern */
+	while ((pattern + i)->type != RTE_FLOW_ITEM_TYPE_END) {
+		if ((pattern + i)->type != RTE_FLOW_ITEM_TYPE_VOID)
+			item_num++;
+		i++;
+	}
+	item_num++;
+
+	items = rte_zmalloc("iavf_pattern",
+			    item_num * sizeof(struct rte_flow_item), 0);
+	if (!items) {
+		rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_ITEM_NUM,
+				   NULL, "No memory for PMD internal items.");
+		return NULL;
+	}
+	pattern_match_item = rte_zmalloc("iavf_pattern_match_item",
+				sizeof(struct iavf_pattern_match_item), 0);
+	if (!pattern_match_item) {
+		rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
+				   NULL, "Failed to allocate memory.");
+		return NULL;
+	}
+
+	iavf_pattern_skip_void_item(items, pattern);
+
+	for (i = 0; i < array_len; i++)
+		if (iavf_match_pattern(array[i].pattern_list,
+				       items)) {
+			pattern_match_item->input_set_mask =
+				array[i].input_set_mask;
+			pattern_match_item->pattern_list =
+				array[i].pattern_list;
+			pattern_match_item->meta = array[i].meta;
+			rte_free(items);
+			return pattern_match_item;
+		}
+	rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
+			   pattern, "Unsupported pattern");
+
+	rte_free(items);
+	rte_free(pattern_match_item);
+	return NULL;
+}
+
+static struct iavf_flow_engine *
+iavf_parse_engine_create(struct iavf_adapter *ad,
+		struct rte_flow *flow,
+		struct iavf_parser_list *parser_list,
+		const struct rte_flow_item pattern[],
+		const struct rte_flow_action actions[],
+		struct rte_flow_error *error)
+{
+	struct iavf_flow_engine *engine = NULL;
+	struct iavf_flow_parser_node *parser_node;
+	void *temp;
+	void *meta = NULL;
+
+	TAILQ_FOREACH_SAFE(parser_node, parser_list, node, temp) {
+		if (parser_node->parser->parse_pattern_action(ad,
+				parser_node->parser->array,
+				parser_node->parser->array_len,
+				pattern, actions, &meta, error) < 0)
+			continue;
+
+		engine = parser_node->parser->engine;
+
+		RTE_ASSERT(engine->create != NULL);
+		if (!(engine->create(ad, flow, meta, error)))
+			return engine;
+	}
+	return NULL;
+}
+
+static struct iavf_flow_engine *
+iavf_parse_engine_validate(struct iavf_adapter *ad,
+		struct rte_flow *flow,
+		struct iavf_parser_list *parser_list,
+		const struct rte_flow_item pattern[],
+		const struct rte_flow_action actions[],
+		struct rte_flow_error *error)
+{
+	struct iavf_flow_engine *engine = NULL;
+	struct iavf_flow_parser_node *parser_node;
+	void *temp;
+	void *meta = NULL;
+
+	TAILQ_FOREACH_SAFE(parser_node, parser_list, node, temp) {
+		if (parser_node->parser->parse_pattern_action(ad,
+				parser_node->parser->array,
+				parser_node->parser->array_len,
+				pattern, actions, &meta,  error) < 0)
+			continue;
+
+		engine = parser_node->parser->engine;
+		if (engine->validation == NULL) {
+			rte_flow_error_set(error, EINVAL,
+				RTE_FLOW_ERROR_TYPE_HANDLE,
+				NULL, "Validation not support");
+			continue;
+		}
+
+		if (engine->validation(ad, flow, meta, error)) {
+			rte_flow_error_set(error, EINVAL,
+				RTE_FLOW_ERROR_TYPE_HANDLE,
+				NULL, "Validation failed");
+			break;
+		}
+	}
+	return engine;
+}
+
+
+static int
+iavf_flow_process_filter(struct rte_eth_dev *dev,
+		struct rte_flow *flow,
+		const struct rte_flow_attr *attr,
+		const struct rte_flow_item pattern[],
+		const struct rte_flow_action actions[],
+		struct iavf_flow_engine **engine,
+		parse_engine_t iavf_parse_engine,
+		struct rte_flow_error *error)
+{
+	int ret = IAVF_ERR_CONFIG;
+	struct iavf_adapter *ad =
+		IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
+
+	if (!pattern) {
+		rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM_NUM,
+				   NULL, "NULL pattern.");
+		return -rte_errno;
+	}
+
+	if (!actions) {
+		rte_flow_error_set(error, EINVAL,
+				   RTE_FLOW_ERROR_TYPE_ACTION_NUM,
+				   NULL, "NULL action.");
+		return -rte_errno;
+	}
+
+	if (!attr) {
+		rte_flow_error_set(error, EINVAL,
+				   RTE_FLOW_ERROR_TYPE_ATTR,
+				   NULL, "NULL attribute.");
+		return -rte_errno;
+	}
+
+	ret = iavf_flow_valid_attr(attr, error);
+	if (ret)
+		return ret;
+
+	*engine = iavf_parse_engine(ad, flow, &vf->rss_parser_list, pattern,
+				    actions, error);
+	if (*engine != NULL)
+		return 0;
+
+	*engine = iavf_parse_engine(ad, flow, &vf->dist_parser_list, pattern,
+				    actions, error);
+
+	if (*engine == NULL)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int
+iavf_flow_validate(struct rte_eth_dev *dev,
+		const struct rte_flow_attr *attr,
+		const struct rte_flow_item pattern[],
+		const struct rte_flow_action actions[],
+		struct rte_flow_error *error)
+{
+	struct iavf_flow_engine *engine;
+
+	return iavf_flow_process_filter(dev, NULL, attr, pattern, actions,
+			&engine, iavf_parse_engine_validate, error);
+}
+
+static struct rte_flow *
+iavf_flow_create(struct rte_eth_dev *dev,
+		 const struct rte_flow_attr *attr,
+		 const struct rte_flow_item pattern[],
+		 const struct rte_flow_action actions[],
+		 struct rte_flow_error *error)
+{
+	struct iavf_adapter *ad =
+		IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
+	struct iavf_flow_engine *engine = NULL;
+	struct rte_flow *flow = NULL;
+	int ret;
+
+	flow = rte_zmalloc("iavf_flow", sizeof(struct rte_flow), 0);
+	if (!flow) {
+		rte_flow_error_set(error, ENOMEM,
+				   RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+				   "Failed to allocate memory");
+		return flow;
+	}
+
+	ret = iavf_flow_process_filter(dev, flow, attr, pattern, actions,
+			&engine, iavf_parse_engine_create, error);
+	if (ret < 0) {
+		PMD_DRV_LOG(ERR, "Failed to create flow");
+		rte_free(flow);
+		flow = NULL;
+		goto free_flow;
+	}
+
+	flow->engine = engine;
+	TAILQ_INSERT_TAIL(&vf->flow_list, flow, node);
+	PMD_DRV_LOG(INFO, "Succeeded to create (%d) flow", engine->type);
+
+free_flow:
+	rte_spinlock_unlock(&vf->flow_ops_lock);
+	return flow;
+}
+
+static int
+iavf_flow_destroy(struct rte_eth_dev *dev,
+		  struct rte_flow *flow,
+		  struct rte_flow_error *error)
+{
+	struct iavf_adapter *ad =
+		IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
+	int ret = 0;
+
+	if (!flow || !flow->engine || !flow->engine->destroy) {
+		rte_flow_error_set(error, EINVAL,
+				   RTE_FLOW_ERROR_TYPE_HANDLE,
+				   NULL, "Invalid flow");
+		return -rte_errno;
+	}
+
+	rte_spinlock_lock(&vf->flow_ops_lock);
+
+	ret = flow->engine->destroy(ad, flow, error);
+
+	if (!ret) {
+		TAILQ_REMOVE(&vf->flow_list, flow, node);
+		rte_free(flow);
+	} else {
+		PMD_DRV_LOG(ERR, "Failed to destroy flow");
+	}
+
+	rte_spinlock_unlock(&vf->flow_ops_lock);
+
+	return ret;
+}
+
+static int
+iavf_flow_flush(struct rte_eth_dev *dev,
+		struct rte_flow_error *error)
+{
+	struct iavf_adapter *ad =
+		IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+	struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(ad);
+	struct rte_flow *p_flow;
+	void *temp;
+	int ret = 0;
+
+	TAILQ_FOREACH_SAFE(p_flow, &vf->flow_list, node, temp) {
+		ret = iavf_flow_destroy(dev, p_flow, error);
+		if (ret) {
+			PMD_DRV_LOG(ERR, "Failed to flush flows");
+			return -EINVAL;
+		}
+	}
+
+	return ret;
+}
+
+static int
+iavf_flow_query(struct rte_eth_dev *dev,
+		struct rte_flow *flow,
+		const struct rte_flow_action *actions,
+		void *data,
+		struct rte_flow_error *error)
+{
+	int ret = -EINVAL;
+	struct iavf_adapter *ad =
+		IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private);
+	struct rte_flow_query_count *count = data;
+
+	if (!flow || !flow->engine || !flow->engine->query_count) {
+		rte_flow_error_set(error, EINVAL,
+				   RTE_FLOW_ERROR_TYPE_HANDLE,
+				   NULL, "Invalid flow");
+		return -rte_errno;
+	}
+
+	for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
+		switch (actions->type) {
+		case RTE_FLOW_ACTION_TYPE_VOID:
+			break;
+		case RTE_FLOW_ACTION_TYPE_COUNT:
+			ret = flow->engine->query_count(ad, flow, count, error);
+			break;
+		default:
+			return rte_flow_error_set(error, ENOTSUP,
+					RTE_FLOW_ERROR_TYPE_ACTION,
+					actions,
+					"action not supported");
+		}
+	}
+	return ret;
+}
diff --git a/drivers/net/iavf/iavf_generic_flow.h b/drivers/net/iavf/iavf_generic_flow.h
new file mode 100644
index 000000000..f4906b43a
--- /dev/null
+++ b/drivers/net/iavf/iavf_generic_flow.h
@@ -0,0 +1,313 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2019 Intel Corporation
+ */
+
+#ifndef _IAVF_GENERIC_FLOW_H_
+#define _IAVF_GENERIC_FLOW_H_
+
+#include <rte_flow_driver.h>
+
+/* protocol */
+
+#define IAVF_PROT_MAC_INNER         (1ULL << 1)
+#define IAVF_PROT_MAC_OUTER         (1ULL << 2)
+#define IAVF_PROT_VLAN_INNER        (1ULL << 3)
+#define IAVF_PROT_VLAN_OUTER        (1ULL << 4)
+#define IAVF_PROT_IPV4_INNER        (1ULL << 5)
+#define IAVF_PROT_IPV4_OUTER        (1ULL << 6)
+#define IAVF_PROT_IPV6_INNER        (1ULL << 7)
+#define IAVF_PROT_IPV6_OUTER        (1ULL << 8)
+#define IAVF_PROT_TCP_INNER         (1ULL << 9)
+#define IAVF_PROT_TCP_OUTER         (1ULL << 10)
+#define IAVF_PROT_UDP_INNER         (1ULL << 11)
+#define IAVF_PROT_UDP_OUTER         (1ULL << 12)
+#define IAVF_PROT_SCTP_INNER        (1ULL << 13)
+#define IAVF_PROT_SCTP_OUTER        (1ULL << 14)
+#define IAVF_PROT_ICMP4_INNER       (1ULL << 15)
+#define IAVF_PROT_ICMP4_OUTER       (1ULL << 16)
+#define IAVF_PROT_ICMP6_INNER       (1ULL << 17)
+#define IAVF_PROT_ICMP6_OUTER       (1ULL << 18)
+#define IAVF_PROT_VXLAN             (1ULL << 19)
+#define IAVF_PROT_NVGRE             (1ULL << 20)
+#define IAVF_PROT_GTPU              (1ULL << 21)
+#define IAVF_PROT_ESP		    (1ULL << 22)
+#define IAVF_PROT_AH		    (1ULL << 23)
+#define IAVF_PROT_L2TPV3OIP	    (1ULL << 24)
+#define IAVF_PROT_PFCP		    (1ULL << 25)
+
+
+/* field */
+
+#define IAVF_SMAC                   (1ULL << 63)
+#define IAVF_DMAC                   (1ULL << 62)
+#define IAVF_ETHERTYPE              (1ULL << 61)
+#define IAVF_IP_SRC                 (1ULL << 60)
+#define IAVF_IP_DST                 (1ULL << 59)
+#define IAVF_IP_PROTO               (1ULL << 58)
+#define IAVF_IP_TTL                 (1ULL << 57)
+#define IAVF_IP_TOS                 (1ULL << 56)
+#define IAVF_SPORT                  (1ULL << 55)
+#define IAVF_DPORT                  (1ULL << 54)
+#define IAVF_ICMP_TYPE              (1ULL << 53)
+#define IAVF_ICMP_CODE              (1ULL << 52)
+#define IAVF_VXLAN_VNI              (1ULL << 51)
+#define IAVF_NVGRE_TNI              (1ULL << 50)
+#define IAVF_GTPU_TEID              (1ULL << 49)
+#define IAVF_GTPU_QFI               (1ULL << 48)
+#define IAVF_ESP_SPI		    (1ULL << 47)
+#define IAVF_AH_SPI		    (1ULL << 46)
+#define IAVF_L2TPV3OIP_SESSION_ID   (1ULL << 45)
+#define IAVF_PFCP_S_FIELD	    (1ULL << 44)
+#define IAVF_PFCP_SEID		    (1ULL << 43)
+
+/* input set */
+
+#define IAVF_INSET_NONE             0ULL
+
+/* non-tunnel */
+
+#define IAVF_INSET_SMAC         (IAVF_PROT_MAC_OUTER | IAVF_SMAC)
+#define IAVF_INSET_DMAC         (IAVF_PROT_MAC_OUTER | IAVF_DMAC)
+#define IAVF_INSET_VLAN_INNER   (IAVF_PROT_VLAN_INNER)
+#define IAVF_INSET_VLAN_OUTER   (IAVF_PROT_VLAN_OUTER)
+#define IAVF_INSET_ETHERTYPE    (IAVF_ETHERTYPE)
+
+#define IAVF_INSET_IPV4_SRC \
+	(IAVF_PROT_IPV4_OUTER | IAVF_IP_SRC)
+#define IAVF_INSET_IPV4_DST \
+	(IAVF_PROT_IPV4_OUTER | IAVF_IP_DST)
+#define IAVF_INSET_IPV4_TOS \
+	(IAVF_PROT_IPV4_OUTER | IAVF_IP_TOS)
+#define IAVF_INSET_IPV4_PROTO \
+	(IAVF_PROT_IPV4_OUTER | IAVF_IP_PROTO)
+#define IAVF_INSET_IPV4_TTL \
+	(IAVF_PROT_IPV4_OUTER | IAVF_IP_TTL)
+#define IAVF_INSET_IPV6_SRC \
+	(IAVF_PROT_IPV6_OUTER | IAVF_IP_SRC)
+#define IAVF_INSET_IPV6_DST \
+	(IAVF_PROT_IPV6_OUTER | IAVF_IP_DST)
+#define IAVF_INSET_IPV6_NEXT_HDR \
+	(IAVF_PROT_IPV6_OUTER | IAVF_IP_PROTO)
+#define IAVF_INSET_IPV6_HOP_LIMIT \
+	(IAVF_PROT_IPV6_OUTER | IAVF_IP_TTL)
+#define IAVF_INSET_IPV6_TC \
+	(IAVF_PROT_IPV6_OUTER | IAVF_IP_TOS)
+
+#define IAVF_INSET_TCP_SRC_PORT \
+	(IAVF_PROT_TCP_OUTER | IAVF_SPORT)
+#define IAVF_INSET_TCP_DST_PORT \
+	(IAVF_PROT_TCP_OUTER | IAVF_DPORT)
+#define IAVF_INSET_UDP_SRC_PORT \
+	(IAVF_PROT_UDP_OUTER | IAVF_SPORT)
+#define IAVF_INSET_UDP_DST_PORT \
+	(IAVF_PROT_UDP_OUTER | IAVF_DPORT)
+#define IAVF_INSET_SCTP_SRC_PORT \
+	(IAVF_PROT_SCTP_OUTER | IAVF_SPORT)
+#define IAVF_INSET_SCTP_DST_PORT \
+	(IAVF_PROT_SCTP_OUTER | IAVF_DPORT)
+#define IAVF_INSET_ICMP4_SRC_PORT \
+	(IAVF_PROT_ICMP4_OUTER | IAVF_SPORT)
+#define IAVF_INSET_ICMP4_DST_PORT \
+	(IAVF_PROT_ICMP4_OUTER | IAVF_DPORT)
+#define IAVF_INSET_ICMP6_SRC_PORT \
+	(IAVF_PROT_ICMP6_OUTER | IAVF_SPORT)
+#define IAVF_INSET_ICMP6_DST_PORT \
+	(IAVF_PROT_ICMP6_OUTER | IAVF_DPORT)
+#define IAVF_INSET_ICMP4_TYPE \
+	(IAVF_PROT_ICMP4_OUTER | IAVF_ICMP_TYPE)
+#define IAVF_INSET_ICMP4_CODE \
+	(IAVF_PROT_ICMP4_OUTER | IAVF_ICMP_CODE)
+#define IAVF_INSET_ICMP6_TYPE \
+	(IAVF_PROT_ICMP6_OUTER | IAVF_ICMP_TYPE)
+#define IAVF_INSET_ICMP6_CODE \
+	(IAVF_PROT_ICMP6_OUTER | IAVF_ICMP_CODE)
+#define IAVF_INSET_GTPU_TEID \
+	(IAVF_PROT_GTPU | IAVF_GTPU_TEID)
+#define IAVF_INSET_GTPU_QFI \
+	(IAVF_PROT_GTPU | IAVF_GTPU_QFI)
+#define IAVF_INSET_ESP_SPI \
+	(IAVF_PROT_ESP | IAVF_ESP_SPI)
+#define IAVF_INSET_AH_SPI \
+	(IAVF_PROT_AH | IAVF_AH_SPI)
+#define IAVF_INSET_L2TPV3OIP_SESSION_ID \
+	(IAVF_PROT_L2TPV3OIP | IAVF_L2TPV3OIP_SESSION_ID)
+#define IAVF_INSET_PFCP_S_FIELD \
+	(IAVF_PROT_PFCP | IAVF_PFCP_S_FIELD)
+#define IAVF_INSET_PFCP_SEID \
+	(IAVF_PROT_PFCP | IAVF_PFCP_S_FIELD | IAVF_PFCP_SEID)
+
+
+/* empty pattern */
+extern enum rte_flow_item_type iavf_pattern_empty[];
+
+/* L2 */
+extern enum rte_flow_item_type iavf_pattern_ethertype[];
+extern enum rte_flow_item_type iavf_pattern_ethertype_vlan[];
+extern enum rte_flow_item_type iavf_pattern_ethertype_qinq[];
+
+/* ARP */
+extern enum rte_flow_item_type iavf_pattern_eth_arp[];
+
+/* non-tunnel IPv4 */
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv4[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_udp[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv4_udp[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4_udp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_tcp[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv4_tcp[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4_tcp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_sctp[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv4_sctp[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4_sctp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_icmp[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv4_icmp[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv4_icmp[];
+
+/* non-tunnel IPv6 */
+extern enum rte_flow_item_type iavf_pattern_eth_ipv6[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv6_udp[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_udp[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_udp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv6_tcp[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_tcp[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_tcp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv6_sctp[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_sctp[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_sctp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv6_icmp6[];
+extern enum rte_flow_item_type iavf_pattern_eth_vlan_ipv6_icmp6[];
+extern enum rte_flow_item_type iavf_pattern_eth_qinq_ipv6_icmp6[];
+
+/* GTPU */
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_ipv4[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_eh[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_eh_ipv4[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_eh_ipv4_udp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_eh_ipv4_tcp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_gtpu_eh_ipv4_icmp[];
+
+/* ESP */
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_esp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_udp_esp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv6_esp[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv6_udp_esp[];
+
+/* AH */
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_ah[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv6_ah[];
+
+/* L2TPV3 */
+extern enum rte_flow_item_type iavf_pattern_eth_ipv4_l2tpv3[];
+extern enum rte_flow_item_type iavf_pattern_eth_ipv6_l2tpv3[];
+
+extern const struct rte_flow_ops iavf_flow_ops;
+
+/* pattern structure */
+struct iavf_pattern_match_item {
+	enum rte_flow_item_type *pattern_list;
+	/* pattern_list must end with RTE_FLOW_ITEM_TYPE_END */
+	uint64_t input_set_mask;
+	void *meta;
+};
+
+typedef int (*engine_init_t)(struct iavf_adapter *ad);
+typedef void (*engine_uninit_t)(struct iavf_adapter *ad);
+typedef int (*engine_validation_t)(struct iavf_adapter *ad,
+		struct rte_flow *flow,
+		void *meta,
+		struct rte_flow_error *error);
+typedef int (*engine_create_t)(struct iavf_adapter *ad,
+		struct rte_flow *flow,
+		void *meta,
+		struct rte_flow_error *error);
+typedef int (*engine_destroy_t)(struct iavf_adapter *ad,
+		struct rte_flow *flow,
+		struct rte_flow_error *error);
+typedef int (*engine_query_t)(struct iavf_adapter *ad,
+		struct rte_flow *flow,
+		struct rte_flow_query_count *count,
+		struct rte_flow_error *error);
+typedef void (*engine_free_t) (struct rte_flow *flow);
+typedef int (*parse_pattern_action_t)(struct iavf_adapter *ad,
+		struct iavf_pattern_match_item *array,
+		uint32_t array_len,
+		const struct rte_flow_item pattern[],
+		const struct rte_flow_action actions[],
+		void **meta,
+		struct rte_flow_error *error);
+
+/* engine types. */
+enum iavf_flow_engine_type {
+	IAVF_FLOW_ENGINE_NONE = 0,
+	IAVF_FLOW_ENGINE_FDIR,
+	IAVF_FLOW_ENGINE_HASH,
+	IAVF_FLOW_ENGINE_MAX,
+};
+
+/**
+ * classification stages.
+ * for non-pipeline mode, we have two classification stages: Distributor/RSS
+ * for pipeline-mode we have three classification stages:
+ * Permission/Distributor/RSS
+ */
+enum iavf_flow_classification_stage {
+	IAVF_FLOW_STAGE_NONE = 0,
+	IAVF_FLOW_STAGE_RSS,
+	IAVF_FLOW_STAGE_DISTRIBUTOR,
+	IAVF_FLOW_STAGE_MAX,
+};
+
+/* Struct to store engine created. */
+struct iavf_flow_engine {
+	TAILQ_ENTRY(iavf_flow_engine) node;
+	engine_init_t init;
+	engine_uninit_t uninit;
+	engine_validation_t validation;
+	engine_create_t create;
+	engine_destroy_t destroy;
+	engine_query_t query_count;
+	engine_free_t free;
+	enum iavf_flow_engine_type type;
+};
+
+TAILQ_HEAD(iavf_engine_list, iavf_flow_engine);
+
+/* Struct to store flow created. */
+struct rte_flow {
+	TAILQ_ENTRY(rte_flow) node;
+	struct iavf_flow_engine *engine;
+	void *rule;
+};
+
+struct iavf_flow_parser {
+	struct iavf_flow_engine *engine;
+	struct iavf_pattern_match_item *array;
+	uint32_t array_len;
+	parse_pattern_action_t parse_pattern_action;
+	enum iavf_flow_classification_stage stage;
+};
+
+/* Struct to store parser created. */
+struct iavf_flow_parser_node {
+	TAILQ_ENTRY(iavf_flow_parser_node) node;
+	struct iavf_flow_parser *parser;
+};
+
+void iavf_register_flow_engine(struct iavf_flow_engine *engine);
+int iavf_flow_init(struct iavf_adapter *ad);
+void iavf_flow_uninit(struct iavf_adapter *ad);
+int iavf_register_parser(struct iavf_flow_parser *parser,
+			 struct iavf_adapter *ad);
+void iavf_unregister_parser(struct iavf_flow_parser *parser,
+			    struct iavf_adapter *ad);
+struct iavf_pattern_match_item *
+iavf_search_pattern_match_item(const struct rte_flow_item pattern[],
+		struct iavf_pattern_match_item *array,
+		uint32_t array_len,
+		struct rte_flow_error *error);
+#endif
diff --git a/drivers/net/iavf/meson.build b/drivers/net/iavf/meson.build
index dbd0b01db..32eabca4b 100644
--- a/drivers/net/iavf/meson.build
+++ b/drivers/net/iavf/meson.build
@@ -12,6 +12,7 @@ sources = files(
 	'iavf_ethdev.c',
 	'iavf_rxtx.c',
 	'iavf_vchnl.c',
+	'iavf_generic_flow.c',
 )
 
 if arch_subdir == 'x86'
-- 
2.17.1